122212400202 has 12 divisors (see below), whose sum is σ = 264793533810. Its totient is φ = 40737466728.

The previous prime is 122212400201. The next prime is 122212400227. The reversal of 122212400202 is 202004212221.

122212400202 is a `hidden beast` number, since 1 + 2 + 221 + 240 + 0 + 202 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71172101961 + 51040298241 = 266781^2 + 225921^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6789577789 = 122212400202 / (1 + 2 + 2 + 2 + 1 + 2 + 4 + 0 + 0 + 2 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (122212400201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3394788877 + ... + 3394788912.

Almost surely, 2^122212400202 is an apocalyptic number.

122212400202 is an abundant number, since it is smaller than the sum of its proper divisors (142581133608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122212400202 is a wasteful number, since it uses less digits than its factorization.

122212400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6789577797 (or 6789577794 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122212400202 its reverse (202004212221), we get a palindrome (324216612423).

The spelling of 122212400202 in words is "one hundred twenty-two billion, two hundred twelve million, four hundred thousand, two hundred two".